Let’s set up a thought experiment: Suppose you had some material that ran one ounce per ton gold, which is generally considered high grade to fantastic grade depending on the circumstances.

I probably swung over a few targets without noticing them. My first target came  about ten minutes later as I went over a part of the high bench in this wide section of the dry wash.

Selecting the wrong coil can potentially cause you to miss nuggets, so you want to be sure to select the best option for the situation at hand.